Valve-gear for gas-engines.



1s. .1. mm1. VALVE GEAR F03 GAB BQGXHES. LPHJOANOI TILBD i321'. 2i. 1910.

fmggg, 1 Patend Aug. 19, 1913.

4 QBEBTHHBBT 2.

mm mlm nu'mm. l 6.

M. A. MIEL. VALVE GEAR FOB GAB EHGIHEE. LPPIJUA'HOI IILID IBPT. SI, 1910. y 'u. Patented Aug. 19, 1913.

` A. TIEL. vALvn @ma Foz @as meme.

APBLIUAHGI IILSD EBIT. Il, 1910.

Pateat/e Aug. 19, 1913.

mama

4 IHEBTMEBET wllu manna-Amma.

- et? the structure of A. TE 11h11, Oli* MEDUNT VEMON, @m0, ASESEGNOE. TG THE C. & COGPEB, CG.,

E? HUNT VERNON, Omi), A CDEPGFATION 0E' WEST VERGENI.

nrw@ P', 1.o 49,503.

pecication of Letters Patent.

Patented Ang. lill, 1213.

Application tiled September 22, 1910. Serial No. 55333229.

@ZZ waom may concern Be it known that I, MARTIN A. Tumi., of iilount Vernon, county of Knox, and State of Chio, have invented certain new and use` inl improvements in Valve-Gears for Gas- .tlngines, of which the following is a full, clear, und exact specification, such us will enable others skilled in the art to which it apport-eins to make and use the same.

Ifile present ap )lication relates to modiientions of the inlet valve forming part of subject-matter of my co-pending application for patent on gas engine valve mechnnism, Serial No. 583,298, filed September 1910, wherein the inlet valve is combined `with a governor controlled regulating valve.

According to the modifications forming the snbg'ect 01 this application, i combine with 'the inlet valve two peculiarly constructed tubular regulating valves arranged one within the other, one of them movingl with the inlet valve to open and close the nir and gas ports or either of them and the other moving under the governor to control the amount of air and gas or either of them edmittc l.

My present invention also involves certain novel features of structure and arrangement concerning the housing or cage mounting these valves and the arrangement of elemente adjacent thereto.

The invention also involves eculiar features of construction which 'a low for minuto adjustment of the gas ports, whereby the maximum amount of gas admitted is permanently regulated, thus adapting the mechanism to gases of varying composition and adapting it particularly to natural and other very rich gases.

Various other features of importance are involved and all will be fully set forth heroinaiter and particularly pointed out in the claims.

.For this purpose reference is now had to the accompanying drawings which represent as examples the preferred embodiment oi the invention.

in these drawings-Figure 1 represents n vertical section of the invention taken transversely of the cylinder; Fig. 2 is a vcrtical section teken longitudinally ci; the cylinder; fig. 3 is a horizontal section on the line B-3 of Fig. l'xiii'. is o. plan View iggfii, Fig. 5 1a a vertical section of a further modification; Fig. G is a detail section of the regulating sleeve forming; part of the structure of Fig. 5; Fig. 7 is a similar view of the gas adjusting sleeve also forming part of the structure ot Fig. 5.

Referring first to Figs. 1-3, 10 indicates the c linder of the engine,the top of which is facer off as shown and formed with an inlet port 11 carrying the seat 12 of the inlet valve 14. The stem 15 of the valve extends upward and is connected with a gear 1G for operating it, all of which is fully set forth and claimed in my co-pending application above referred to.

An annular valve chamber 17 is fastened on the faced surface of the cylinder and commiinieates with a tangentially disposed pipe 18 supplying the air and gas. The said valve chamber 17 is formed interiorly with a horizontal web or wall 19 which divides it into upper and lower chambers, the former for the air and the latter for the gas. The pipe 18 may be similarly partitioned and the ges side rovided with a butterfly valve 2O (see bro (en lines in Fig. 3) for regulating the gas flow manually, as is frequently desirable to moet changes in the composition of the gas. The recise form of the pipe 18 is not material, iowever, the only requisite being that thc as and air be brought separated to the divisions of the valve chamber.

"Within the chamber 17 is a valve bearing cage composed of three horizontal annular walls 21, 22 and 23, joined by a number of bolt sleeves 24 (here shown as six). This cegcbears on the surface top of the cylinder, and its Wall 23 engaging the same, while its wall 22 meets the wall or web 19 its wall 21 meets the top wall of the chamber 17. At its inner edge the wall 23 of the valve cage has an annular skirt or de ending portion 2B which bears on the inlht seat 12 and holds the same in place. The cage is fastened in place by studs 25 which are screwed into the cylinder and project up into the bolt sleeves 24 and are there engaged by elongated nuts 26 which extend through the bolt sleeves to a. point above tho cage where they are accessible to permit the removal of the valve mechanism. The wells 21, 22 and 23, it may be perceived, preserve the separate air and gas chambers and in fact form parte of the same.

Within the valve cage is arranged the tuer regulating valve 27; this is open at its tern and it is closed at vits top toprevent of the explosive mixture. Said valve re. tably seated on the walls 2l, 22 and 23 cage and projects above the same as in l.. The valve is formed with nts 53's and 2'?b respectively communicatwith the air and gas chambers and it is ev-entail from upward motion by clips or s 2.8 which are bolted down on the wall the valve calze and have sliding en .nent with a ange 2 on the upper non or the vulve.

indicates an arm fastened to the top of valve 527 and adapted to be connected to governor linkage so that, according to position of the governor, the position of valve around its vertical axis will be .l as will fully appear hereinafter.

thin the tubular regulatim valve 27 is ruining valve-sleeve 30. This ias a hub 31 which is fastened to the stem of the inlet eli e l so that the valve moves with the .iet valve and is incapable of rotating on stern. 'hs valve 30 is open at its bottom *o the space inclosed by the valve seat and ten is we bed to the hub 31, though open Pn cruised as at 30l to prevent the formation artiel vacuum in the top of the valve due tc the downward motion of the valve The mixing valve 80 has two series of ports 2li? and 30 respectivel provided for the air and gas. Normally when the inlet i ive is closed) the ports 30b and 30 stand a, -..'e the ports 27u and 2'?b so that the air and ,ges are cut off by the valve 80, but when the inlet valve opens the mixing valve moves down, bringing the ports 30 and 30 into reijstry respectively with the ports 27 and 227i and allowing the gas and air to mix and enter the cylinder.

in operation of the valve mechanism, the air and ras lie in the valve chamber and cage divided or kept separate by the walls or webs 19 and 22 and confined or stopped oli" by the mixing valve 30. When the valve gear opens the inlet valve, the mixing valve il@ moves down and brings the ports 30b and 30 into registry with the ports 27 and 27b allowing the air and gas to flow into the mixing valve and from it through the inlet port to the cylinder. ln this movement the air and are mixed to form the esplosive charge. Simultaneously the governor is acton the regulating valve 2T and this valve in a constant state or oscillation whereby e degree or extent of registry of the ports and 2? and the ports BOb and 30 is This varies the effective area of the openings into the cylinder and the amount of the charge adit will he eeen that the air and gas 'i rely threttled, thus bringing about in the quantity ci. the charge, but

nordsee avoiding a change in the quality or proportions o the explosive mixture. By thus in creasing or diminishing the amount of the charge, regulation of tlic engine is effected.

F 10's d to 7 show a 4form of the valve which is adapted especially for natural gas, wherein the @as ports are comparatively narrow and susceptible to very fine adjustment. ln this way the valve may be set and locked to suit the particular character of the gas being used. According to this form of the invention, the inner or mixing; valve sleeve 34 is essentially the sume as before described and is carried to reci )recate with the inlet valve as is shown in tlie drawings (Fig. 5). The outer or regulating valve sleeve, however, is of composite structure, comprisingr a main body or portion 35, an inner or adjustment member 86 and various appurtenant parts which will presently be det scribed. rihe main part 35 of the regulating sleeve has external annular ribs 87 and 38, the lower of which, 37, bears on a wall 39 in the housing 40 and the upper of which meets the top wall of the housing and is eneaged by lugs 41, whereby the sleeve is belli rotatably, but prevented from axial motion. The said wall 39 forms two chambers in the housing, the upper for the air and the lower for the gas. The body 35 has air ports 42 in a horizontal line around its. circumference and below each of these ports 4:2 are vertically disposed internal ribs d3 or gradually decreasing length. These ribs extend downward and are merged into a thickened lower portion 4d which brings the lower edge of the body to a thickness equal that of the ribs and the upper part of the body. The ribs 43 therefore form vertical internal 'grooves running downward from the ports 42 for gradually increasing or gradually decreasing distances and at the ower ends oi these grooves are formed the gas ports 45 which are all of equal width but gradually decrease in vertical extent correspondingly with the gradual increase in the length of the ribs 48. The inner or adjustment member has an unbroken portion fitting snugly within the body 35 and below this it is formed with parallel downwardly projecting lugs 46, which lit in the spaces between the ribs 43 on the body 35. The lugs 46 are of the same increasing length as the ribs and their lower ends lap the gas ports 45 closing them to un extent dependent upon the vertical osition-of the member 36 compared to the ody 35. They lugs e6 are longer than the ribs so that the spaces between the lugs at their upper portions register with and leave uncovered the air ports e2. As shown in Fig. 5, when the arts 35 and B6 are fitted together characteristically they constitute a uniform thickness with a smooth inner surface snugl yet movably engaging the outer walls ont t te mixing ics cgi

u the clips 53 horas i threaded aiinulus e9 which engages and co with the threads d?. The adjustment ibsr 3, it will be noted, cannot rotate in the body 35, but it is free to move vertically. Hence by rotating the annulus 49 the said member 36 may be moved up or down and the effective urea of the gas ports varied :is described. The annulus 49 has Spanner holes 50 or may be furnished with other means facilitating its rotation. In the outer surface of the annulus 49 is an nnnular iroove 5l and into this groove rojcct arca iaped tongues 52 on clips 53 w iich ure batted down on the body 35 and formed on their under surfaces with nrc-shaped ribs which lit in corres ending grooves in the top ci the body 85. y ti htening the bolts said clips 53 the annuis e9 is clamped inst rotation and, the adjustment mem r being incapable of rotation, it is there- Sore held at the desired adjustment. By slucliening the bolts, the annulus may be rotated to sdiust the member 3S. One of as an arm or extension 55 adapted to he articulated to the governor for the purpose and in the manner before described. The operation of this form or' volvo is the same :is that of the forms bedescribed, excepting that since the cas g in the regulating valve stand at diiferent elevations they are successively opened by the movement of the mixing vulve. This introduces the gas into the body nir in n number of closely following streams and facilitates the mixingoperation. The regulating valve rotates haelt and forth during operation according to thegovernor position, thereby increasing or diminishing,` the air and gas and regulatin by varying the amount ot mixture rat er than its quality.

llaving thus described my invention what i claim as new and desire to secure by Letters llntent of the United States is:

l. il. engine valve mechanism comprising the combination of inlet valve, an sir supply passage, e gas supply passage, hollow concentric valves concentric With thc inlet valve between said passagesrand scid inlet valve, and having' separate sets oirogistering ports for cac passage and moans for moving one of said hollow valves to cpcnboth sets oit ports, the other of said hollow valves being. rotatable to vary the zctivc eren o said-ports end to vary the eine of the mixture withoutvarying its sntage composition.

n. engine valve mechanism com-A comemation of the inlet valve,

hollow regulating and mixing valves, provided with air and gas ports one inclosing the .otherand both open to the inlet port at their inner ends and one being closed et its outer. end means connection the reculat- 7 a Q l 0 l chronously operating the inlet and mixing; valves, means inclosing the valves and 'torining air and gas chambers, and means ior in@ valve with the governor, means synmanually adjusting the eilective urea of the gusports in the regulating valve.

3. A gas engine valve mechanism comprising the combination of the inlet valve, hollon7 re lating and mixing valves, one inclosing ti let port at their inner ends and one being closed at its outer end, means connecting the regulating valve with the governor, means synchronously operating the inlet and miiiin01 valves, means inclosing the valves and orming air and gas chambers, and means for manually adjusting the gas dow through the regulating valve.

4. A gas engine valve mechanism comorising the combination of the inlet valve, hollow regulating and mixing valves,A provided with air and gas ports, one inclosing the other and both open to the inlet port :it their inner ends and one being closed at its outer end, means connecting the reguloting velve With the governor, means synchronouslyopereting the inlet and mining valves, means inclosing the valves and forining,l air and gas chambers, such means ei;-

osing the said outer end o the outer holovv valve, and means for manually adg'usting the ei'ective area orA the gas ports in the regulating valve.

5. A me` engine valve mechanism coinpiisng the combination of the inlet valve, hollow regulating and mining valves, one inclosing the other and both open to the inlet port et their inner ends and one being` closed at its outer end, means connecting the regulating valve With the governor, means synchronously operating the inlet and mixing valves, means inclosing1 the valves and forming air and gas chambers, such means exposing the said-outer end of the outer hollow valve, and means for manuallyadjusting the gas flow through the regulating valve 6. In a gas engine valve mechanism, the combination of an inlet valve, hollow mixing and regulatinw valvesfprovided with air and gas ports, tile regulating valve being rotatable, means for manually adjusting the eiective erea'of' the gus ports in the reguloting valve, means for automatically operating the regulating lvalve in accordance with the london the engine und means for synchronously operating,r the inlet and miic ing' valves. I

i. ln n. gas engine valve mechanism, the combination ot anwinlet valve, a mining e other and both open to the invnlvo connected to move thercvvithlufhol lor." regulating-vulve provicletlb withy nir :ont ports inclosing the mixing valve;- sr manually adjusting thoeiective` moons o23 the pres-norte in thereguleting velve :intl ineens or'eutometicnlly ooeretmg the referir-.ting volvo in eceorrlence with the lood the engine. Y* 'l 8. eus engine vulve mechanism, the ",;combinotion o un inlet vnlve,liollow mix- :incl reguletinfr vulves, seid regulating vulve lieingrotntutlile', meenefor inonuully airline-ting the ges ilow through the vulve, ineens for automatically op- 5 en infr the regulating vulve in accordance with the loud cn the enginmund ineens for synchronously operating the inlet and mixvelves. i l). in' a gos engine valve mechanism, the combination of en inlet vulve, u mixing valve connected to move therewith, u hollow reguvolve inclcsing the mixing vulve, menne for menuaily adjusting the gus flow through the regulating valve und means for nutomct-icnlly oboerctinc the regulating vulve snee rviththeload on the engine.

'esengine valve `mechenism. com- A; e eomoinstionof the inlet vulve, e rsgfuleting'velve provided with nir t ,s norte-'open et its innerend to the ci, ineens forming uiruud ges cheniincline; the reguleting vulve, e v... vev vrithinfthe regulating vulve opcrsting synchronously nvitiltue inlet ineens for manually edglusting the W ve uren or the gne ports in t e regulatlnivn f ll l engine vulve mechanism comthe eominnt-ion o the inlet valve, o. or; rogminting volvo open ut its inner t the inlet port, means forming nir nml vnlve, e. mixing valve within the regulating voli-'e enel operating synchronously with the l inlet veive, end Ineens for manually adjustive.

l. e les engine vulve mcehnnism, the coinliinntionot en inlet vulve provided with :Li-cris, o. rotnry regulating vulve for air und s, ineens :tor manually regulating the'gos through the ports of seid vulve', und ns for operating thefreguluting valve om tliegovernor. fl f i 13. in e'gus'engine vclvefmeclmnsm, the comhinstion o en: inlet vulve for cir und s single rotary regulating valve for the seme nrcvided with Aports,meenejor munnelly Aadjusting the ,nos flow through the ol seid regulotinmvalve,"menne for the regulating; vulve from the gov- ;r, sind n mining; velveco-nciingwith the toting valve., A n u l gesenginoffvelvemechanism, the otion ci en inlet vulve, e -reguleting chambers surrounding the regulating' ine; the gus ow through tlieregulnting "revente *valve hevinggas ports 'ineens for manually yvarying the urea of seicl gus ports, means for operating the reguletinor valve from the govorner, undl e mixing vulve coacting with the regulating valve. w

l5. in n gas engine valve mechanism, the combination of un inlet vulve, u regulating vulve heving gus ports, an adjustment member sliclulile on the regulating vulve to very the 'gus ports, means for fastening the ud- .7 justment member, means for operating the regulating valve from the governor end e mixing valve cenet-ing with the regulating velve.

16. lu o us engine vulve mechanism, 9 the combination of an inlet valve, n regulating valve having gas ports, an adjustment member slidable on the regulating vulve to vury the ges ports, means for fusteningtlie adjustment member, means for operating the regulating valve from the governor enel e. mixing valve coacting with the regulating valve, seid regulotin and mixing valves loeing hollow and the ormer inclosmg the lstter.

i7. ln u gus engine mechanism, the comloinetion of su inlet valve, u regulating velve heviner ges ports, on adjustment member slirlnble'on the regulating vulve to very the gus ports, mcuns for fastening the urljustment member, menns for opernting the reguloting vulve from the governor und u mining valve coecting with the ree'uleting volvo, seid menne for fastening tthe adjustment member comprising n ring threaded on the adjustment member.

18; ln egos engine vulve mechanism, the combination of hollow mixing and regulating valves, the letter inclosing the lformer nnd rotating under the governor and both rovided with ports, means for mnnuelly ed- ]usting. the amount of registration ci seid ports/whereby the iiow of air and ges to the engine may be regulated, und on inlet velve reciprocating synchronously with the regu n@ loting vulve.

19. ln e. gus engine mechanism, the combination of hollow mixing und regulating: vulves, the' letter inclosing the former und rotating under the governor, un inlet valve n reciprocating synchronously with the mixing vulve and means for manually adjusting the regulating valve, comprising an adjustment member sliclnble on the regulating vulve. und `having lugs or fingers lapping* 120 orts thereof' and devices for locking the ud- Juslment member.

420;fl. gus engine vulve mechunism coinprisingl; the combination ci an inlet vulve, en nir 'sup ly passage, n gus supply passage, two holllow concentric vulves, one oi which is closed ut tho top und both oi which are open ut the bottom so as to permit enel 'eur tov flow thrcughlthe bottom to seid inlet velvm-saifl concentric vulve having seperate 30 mia of rogiatoring ports for each assage and In testimony whereof I have aigno my moons for moving ono of said va ves to o en name to this specication in the premnco of mail sots of ports, the other of said hol ow two subscribing witnoasefa.

'mires boing rotatable to vary the ooctve MARTIN A. THIEL. area or" said ports and to vary the volume of Witnesses:

iii@ mixture without varying its percentage FRED H. Tammo,

composiiiiom. M. B. SMALLEY..

o! this patent may be obtained for in cents each, by addressing the Commissioner of Patents,

Washington, D. 0J 

